What does code P1698 mean?

Q: What does code P1698 mean?

No CCD Messages From TCM. P1698 on Mitsubishi vehicles means the powertrain control module (PCM) has not received any valid Chrysler Collision Detection (CCD) bus messages from the transmission control module (TCM). The PCM monitors the CCD data bus and sets this code when the expected TCM heartbeat or data frames are absent for a calibrated period, indicating a communication failure rather than a direct transmission mechanical fault.

DTC codes / Mitsubishi codes / P1698

P1698 · MitsubishiNo CCD Messages From TCM

P1698 on Mitsubishi vehicles means the powertrain control module (PCM) has not received any valid Chrysler Collision Detection (CCD) bus messages from the transmission control module (TCM). The PCM monitors the CCD data bus and sets this code when the expected TCM heartbeat or data frames are absent for a calibrated period, indicating a communication failure rather than a direct transmission mechanical fault.

SystemPowertrain

Code typeMitsubishi specific

SeverityMedium

Fix difficultyProfessional

AreaComputer and output circuits

Guidance is general and written for Mitsubishi vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.